Microtunnelling
is the most accurate non-disruptive method of installing
pipelines in the range of 250mm to 3000mm by remote
controlled, laser guided mechanically excavating Tunnel
Boring Machines. Micro-Tunnel Boring Machines (TBM’s) are
designed to install pipelines without disturbing the ground
surface, roads or existing utility services. They can bore
in all types of soil including sands, silt, rock, clay,
gravel, and cobble stones at depths generally up to 50
meters below water table. Our projects in the Middle East
have ranged in pipe diameters from 800 mm to 1800 mm with
drive lengths exceeding 400 meters. Since the company
inception in Nov 2008 and up to the summer of 2011, over 18 km of pipes have been
installed using the microtunneling method in difficult soil
conditions including clay, very loose sands, gravel, silts,
rocks and cobbles under high groundwater pressures.